EP2120233A4 - Procédé et appareil de codage et de décodage - Google Patents
Procédé et appareil de codage et de décodageInfo
- Publication number
- EP2120233A4 EP2120233A4 EP08706547A EP08706547A EP2120233A4 EP 2120233 A4 EP2120233 A4 EP 2120233A4 EP 08706547 A EP08706547 A EP 08706547A EP 08706547 A EP08706547 A EP 08706547A EP 2120233 A4 EP2120233 A4 EP 2120233A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- encoding
- decoding method
- decoding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0212—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007100060040A CN101231850B (zh) | 2007-01-23 | 2007-01-23 | 编解码方法及装置 |
PCT/CN2008/070170 WO2008089705A1 (fr) | 2007-01-23 | 2008-01-23 | Procédé et appareil de codage et de décodage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2120233A1 EP2120233A1 (fr) | 2009-11-18 |
EP2120233A4 true EP2120233A4 (fr) | 2010-01-20 |
Family
ID=39644144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08706547A Withdrawn EP2120233A4 (fr) | 2007-01-23 | 2008-01-23 | Procédé et appareil de codage et de décodage |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090299757A1 (fr) |
EP (1) | EP2120233A4 (fr) |
JP (1) | JP2010517083A (fr) |
CN (1) | CN101231850B (fr) |
WO (1) | WO2008089705A1 (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2911228A1 (fr) * | 2007-01-05 | 2008-07-11 | France Telecom | Codage par transformee, utilisant des fenetres de ponderation et a faible retard. |
FR2936898A1 (fr) * | 2008-10-08 | 2010-04-09 | France Telecom | Codage a echantillonnage critique avec codeur predictif |
WO2010044593A2 (fr) | 2008-10-13 | 2010-04-22 | 한국전자통신연구원 | Appareil de codage/décodage de signal résiduel lpc de dispositif de codage vocal/audio unifié basé sur une transformée en cosinus discrète modifiée (mdct) |
KR101649376B1 (ko) * | 2008-10-13 | 2016-08-31 | 한국전자통신연구원 | Mdct 기반 음성/오디오 통합 부호화기의 lpc 잔차신호 부호화/복호화 장치 |
US9384748B2 (en) | 2008-11-26 | 2016-07-05 | Electronics And Telecommunications Research Institute | Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching |
KR101315617B1 (ko) * | 2008-11-26 | 2013-10-08 | 광운대학교 산학협력단 | 모드 스위칭에 기초하여 윈도우 시퀀스를 처리하는 통합 음성/오디오 부/복호화기 |
KR101622950B1 (ko) * | 2009-01-28 | 2016-05-23 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 그 장치 |
PL3352168T3 (pl) * | 2009-06-23 | 2021-03-08 | Voiceage Corporation | Postępowe tłumienie aliasingu w dziedzinie czasu z zastosowaniem w ważonej albo pierwotnej dziedzinie sygnału |
ES2441069T3 (es) * | 2009-10-08 | 2014-01-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Decodificador multimodo para señal de audio, codificador multimodo para señal de audio, procedimiento y programa de computación que usan un modelado de ruido en base a linealidad-predicción-codificación |
MX2012004648A (es) * | 2009-10-20 | 2012-05-29 | Fraunhofer Ges Forschung | Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing. |
MX2012004569A (es) | 2009-10-20 | 2012-06-08 | Fraunhofer Ges Forschung | Codificador de audio, decodificador de audio, metodo para codificar informacion de audio, metodo para decodificar informacion de audio y programa de computacion que usa la deteccion de un grupo de valores espectrales previamente decodificados. |
WO2011086066A1 (fr) | 2010-01-12 | 2011-07-21 | Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur et décodeur audio, procédés de codage et de décodage d'informations audio et programme d'ordinateur utilisant une modification d'une représentation numérique d'une valeur de contexte précédent numérique |
US9093066B2 (en) | 2010-01-13 | 2015-07-28 | Voiceage Corporation | Forward time-domain aliasing cancellation using linear-predictive filtering to cancel time reversed and zero input responses of adjacent frames |
US9275650B2 (en) * | 2010-06-14 | 2016-03-01 | Panasonic Corporation | Hybrid audio encoder and hybrid audio decoder which perform coding or decoding while switching between different codecs |
CA3160488C (fr) | 2010-07-02 | 2023-09-05 | Dolby International Ab | Decodage audio avec post-filtrage selectif |
EP2591470B1 (fr) | 2010-07-08 | 2018-12-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codeur utilisant l'annulation du crènelage vers l'avant |
KR101826331B1 (ko) * | 2010-09-15 | 2018-03-22 | 삼성전자주식회사 | 고주파수 대역폭 확장을 위한 부호화/복호화 장치 및 방법 |
CN101968961B (zh) * | 2010-09-19 | 2012-03-21 | 北京航空航天大学 | 一种基于faac lc模式的多路音频实时编码软件设计方法 |
CN101968960B (zh) * | 2010-09-19 | 2012-07-25 | 北京航空航天大学 | 一种基于faac及faad2的多路音频实时编解码硬件设计平台 |
MY186055A (en) * | 2010-12-29 | 2021-06-17 | Samsung Electronics Co Ltd | Coding apparatus and decoding apparatus with bandwidth extension |
EP2680599A1 (fr) * | 2012-06-29 | 2014-01-01 | Thomson Licensing | Fourniture d'un contenu multimédia personnalisé |
CN109448745B (zh) * | 2013-01-07 | 2021-09-07 | 中兴通讯股份有限公司 | 一种编码模式切换方法和装置、解码模式切换方法和装置 |
PT2951821T (pt) | 2013-01-29 | 2017-06-06 | Fraunhofer Ges Forschung | Conceito para codificar a compensação de comutação de modo |
EP2980797A1 (fr) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Décodeur audio, procédé et programme d'ordinateur utilisant une réponse d'entrée zéro afin d'obtenir une transition lisse |
EP2980796A1 (fr) * | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Procédé et appareil de traitement d'un signal audio, décodeur audio et codeur audio |
CN106816153B (zh) * | 2015-12-01 | 2019-03-15 | 腾讯科技(深圳)有限公司 | 一种数据处理方法及其终端 |
CN115346537A (zh) * | 2021-05-14 | 2022-11-15 | 华为技术有限公司 | 一种音频编码、解码方法及装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005078706A1 (fr) * | 2004-02-18 | 2005-08-25 | Voiceage Corporation | Procedes et dispositifs pour l'accentuation a basse frequence lors de la compression audio basee sur les technologies acelp/tcx (codage a prediction lineaire a excitation de code/codage par transformee d'excitation) |
WO2005114654A1 (fr) * | 2004-05-19 | 2005-12-01 | Nokia Corporation | Support de commutateur entre divers modes de codage audio |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6134518A (en) * | 1997-03-04 | 2000-10-17 | International Business Machines Corporation | Digital audio signal coding using a CELP coder and a transform coder |
US6359929B1 (en) * | 1997-07-04 | 2002-03-19 | Matsushita Electric Industrial Co., Ltd. | Image predictive decoding method, image predictive decoding apparatus, image predictive coding apparatus, and data storage medium |
WO1999010719A1 (fr) * | 1997-08-29 | 1999-03-04 | The Regents Of The University Of California | Procede et appareil de codage hybride de la parole a 4kbps |
US6226608B1 (en) * | 1999-01-28 | 2001-05-01 | Dolby Laboratories Licensing Corporation | Data framing for adaptive-block-length coding system |
US6556624B1 (en) * | 1999-07-27 | 2003-04-29 | At&T Corp. | Method and apparatus for accomplishing multiple description coding for video |
JP3806770B2 (ja) * | 2000-03-17 | 2006-08-09 | 松下電器産業株式会社 | 窓処理装置および窓処理方法 |
EP1215663A1 (fr) * | 2000-12-15 | 2002-06-19 | BRITISH TELECOMMUNICATIONS public limited company | Codage de signaux audio |
JP2004523994A (ja) * | 2001-04-10 | 2004-08-05 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 一連のフレームを符号化する方法 |
CN100579236C (zh) * | 2002-01-18 | 2010-01-06 | 皇家飞利浦电子股份有限公司 | 音频编解码方法和装置 |
JP4649208B2 (ja) * | 2002-07-16 | 2011-03-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | オーディオコーディング |
JP2006330256A (ja) * | 2005-05-25 | 2006-12-07 | Kddi Corp | オーディオ信号に対する電子透かし埋込み方法および検出方法 |
-
2007
- 2007-01-23 CN CN2007100060040A patent/CN101231850B/zh active Active
-
2008
- 2008-01-23 JP JP2009546636A patent/JP2010517083A/ja active Pending
- 2008-01-23 EP EP08706547A patent/EP2120233A4/fr not_active Withdrawn
- 2008-01-23 WO PCT/CN2008/070170 patent/WO2008089705A1/fr active Application Filing
-
2009
- 2009-07-23 US US12/508,103 patent/US20090299757A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005078706A1 (fr) * | 2004-02-18 | 2005-08-25 | Voiceage Corporation | Procedes et dispositifs pour l'accentuation a basse frequence lors de la compression audio basee sur les technologies acelp/tcx (codage a prediction lineaire a excitation de code/codage par transformee d'excitation) |
WO2005114654A1 (fr) * | 2004-05-19 | 2005-12-01 | Nokia Corporation | Support de commutateur entre divers modes de codage audio |
Non-Patent Citations (2)
Title |
---|
"Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Audio codec processing functions; Extended Adaptive Multi-Rate - Wideband (AMR-WB+) codec; Transcoding functions (3GPP TS 26.290 version 6.3.0 Release 6); ETSI TS 126 290", ETSI STANDARDS, LIS, SOPHIA ANTIPOLIS CEDEX, FRANCE, vol. 3-SA4, no. V6.3.0, 1 June 2005 (2005-06-01), XP014030612, ISSN: 0000-0001 * |
See also references of WO2008089705A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2120233A1 (fr) | 2009-11-18 |
JP2010517083A (ja) | 2010-05-20 |
WO2008089705A1 (fr) | 2008-07-31 |
CN101231850A (zh) | 2008-07-30 |
CN101231850B (zh) | 2012-02-29 |
US20090299757A1 (en) | 2009-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20090803 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20091217 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G10L 19/00 20060101AFI20080811BHEP Ipc: H04N 7/26 20060101ALI20091211BHEP Ipc: G10L 21/02 20060101ALI20091211BHEP Ipc: H03M 7/00 20060101ALI20091211BHEP |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HUAWEI TECHNOLOGIES CO., LTD. |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20100426 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20100906 |